Overview

overview

10

Static

static

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/12/2022, 07:19

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General

  • Target

    file.exe

  • Size

    306KB

  • MD5

    29dbe2f0a75d863a9009d2d864405a86

  • SHA1

    1ddf7e3f48bc8fe456f468b3469745c80abe524c

  • SHA256

    7f1a402fbd3b09a5907996205922dda81345fd3691cab005bf0e20d34a991800

  • SHA512

    e03a00da3f3380741835ecb5e243328e2bf786f0f44d0717128a1e4822edec27dda647e41b78e2fe6001ac769bf3dd66d58693969487d8548dbcb779670ff586

  • SSDEEP

    6144:sSFwOLTw0rNzr9Ap/7fHX2FIiPfahxq0iPvzpQ6rFiaI:syvw05zr9Apzf33iPKxqxnzpQ6rF

Score
10/10
tofseexmrigevasionminerpersistencetrojan

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    trojantofsee
  • Windows security bypass 2 TTPs 1 IoCs
    evasiontrojan
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

    minerxmrig
  • XMRig Miner payload 2 IoCs
    miner
  • Creates new service(s) 1 TTPs
    persistence
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Sets service image path in registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:800
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yijdeafr\
      2⤵
        PID:1728
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pjzqtrud.exe" C:\Windows\SysWOW64\yijdeafr\
        2⤵
          PID:1592
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create yijdeafr binPath= "C:\Windows\SysWOW64\yijdeafr\pjzqtrud.exe /d\"C:\Users\Admin\AppData\Local\Temp\file.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:1488
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description yijdeafr "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1376
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start yijdeafr
          2⤵
          • Launches sc.exe
          PID:560
        • C:\Windows\SysWOW64\netsh.exe
          "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
          2⤵
          • Modifies Windows Firewall
          PID:1916
      • C:\Windows\SysWOW64\yijdeafr\pjzqtrud.exe
        C:\Windows\SysWOW64\yijdeafr\pjzqtrud.exe /d"C:\Users\Admin\AppData\Local\Temp\file.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:648
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          • Drops file in System32 directory
          • Suspicious use of SetThreadContext
          • Modifies data under HKEY_USERS
          • Suspicious use of WriteProcessMemory
          PID:536
          • C:\Windows\SysWOW64\svchost.exe
            svchost.exe -o fastpool.xyz:10060 -u 9mLwUkiK8Yp89zQQYodWKN29jVVVz1cWDFZctWxge16Zi3TpHnSBnnVcCDhSRXdesnMBdVjtDwh1N71KD9z37EzgKSM1tmS.60000 -p x -k -a cn/half
            3⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1928

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Temp\pjzqtrud.exe
              Filesize

              11.2MB

              MD5

              cbaa0d2feacf88640e98b5200c5e30cc

              SHA1

              1ca6bdf3867c15a5dd172fe3b6015604cc40783a

              SHA256

              ad40579661f462d330a3d38b3facb233a4d1c825d8a87395b9f86d7d1c4aad06

              SHA512

              15fcf7148e280afe8eade23d6598bf3f8fe1a93e5d130fde535104deec206c67773923d4813877407ddcc5e02f11de39a48d232fc254b1f6d08c124cfdd176ba

              Download Submit

            • C:\Windows\SysWOW64\yijdeafr\pjzqtrud.exe
              Filesize

              11.2MB

              MD5

              cbaa0d2feacf88640e98b5200c5e30cc

              SHA1

              1ca6bdf3867c15a5dd172fe3b6015604cc40783a

              SHA256

              ad40579661f462d330a3d38b3facb233a4d1c825d8a87395b9f86d7d1c4aad06

              SHA512

              15fcf7148e280afe8eade23d6598bf3f8fe1a93e5d130fde535104deec206c67773923d4813877407ddcc5e02f11de39a48d232fc254b1f6d08c124cfdd176ba

              Download Submit

            • memory/536-83-0x00000000000A0000-0x00000000000A6000-memory.dmp

              Filesize

              24KB

              Download

            • memory/536-95-0x0000000000360000-0x0000000000367000-memory.dmp

              Filesize

              28KB

              Download

            • memory/536-107-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/536-72-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/536-92-0x00000000058D0000-0x0000000005CDB000-memory.dmp

              Filesize

              4.0MB

              Download

            • memory/536-89-0x0000000000310000-0x0000000000315000-memory.dmp

              Filesize

              20KB

              Download

            • memory/536-70-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/536-86-0x00000000001C0000-0x00000000001D0000-memory.dmp

              Filesize

              64KB

              Download

            • memory/536-80-0x00000000019D0000-0x0000000001BDF000-memory.dmp

              Filesize

              2.1MB

              Download

            • memory/536-79-0x0000000000080000-0x0000000000095000-memory.dmp

              Filesize

              84KB

              Download

            • memory/648-75-0x00000000002EC000-0x0000000000301000-memory.dmp

              Filesize

              84KB

              Download

            • memory/648-77-0x0000000000400000-0x0000000000452000-memory.dmp

              Filesize

              328KB

              Download

            • memory/800-55-0x000000000052C000-0x0000000000541000-memory.dmp

              Filesize

              84KB

              Download

            • memory/800-67-0x0000000000400000-0x0000000000452000-memory.dmp

              Filesize

              328KB

              Download

            • memory/800-66-0x000000000052C000-0x0000000000541000-memory.dmp

              Filesize

              84KB

              Download

            • memory/800-56-0x0000000000220000-0x0000000000233000-memory.dmp

              Filesize

              76KB

              Download

            • memory/800-54-0x0000000075521000-0x0000000075523000-memory.dmp

              Filesize

              8KB

              Download

            • memory/800-57-0x0000000000400000-0x0000000000452000-memory.dmp

              Filesize

              328KB

              Download

            • memory/1928-100-0x0000000000180000-0x0000000000271000-memory.dmp

              Filesize

              964KB

              Download

            • memory/1928-98-0x0000000000180000-0x0000000000271000-memory.dmp

              Filesize

              964KB

              Download